&OPTIMISE: BACKGROUND-FIELD
The background field should be entered as formulae in terms of
the following variables:
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Variable Meaning
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X (or R) x- or r-coordinate
Y (or PHI) y- or phi-coordinate
Z z-coordinate
EXMAP x-component of the background electric field map
EYMAP y-component of the background electric field map
EZMAP z-component of the background electric field map
VMAP background potential field map
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Keyword index.
Formatted on 10/11/98.